Force-feed lubricating-pump.



PATENTED AUG. 11,1908. J. RICE.

- FORGE FEED LUBRIGATING PUMP.

APPLICATION FILED SEPT. 19, 1907.

1,111,101 will, 11

WITNESSES 2 S'HEETSSHEBT 1.

- 11V VENTOR:

I 1 ATTORNEY.

No. 895,683. PATENTED AUG. 11, 1908. J. RICE.

FORCE FEED LUBRIGATING PUMP.

APPLIGATION FILED SEPT. 19, 1907 2 SHEETSSHEET 2.

' ATTORNEY.

panymg drawings,.and to the letters and figreservoir combined, and mechanism for opbarrels to the other barrel, and having a videdwith a heating coil.

pended claims.

s 'rr JOHN RICE, OF SALINEVILLE, OHIO FORCE-FEED LUBRIGATING-PUMP.

Specification of Letters Patent.

Patented Aug. 1 1, 1908.

Application filed September 19, 1907. Serial No. 393,635.

To all whom it may concern:

Be it known that I, JOHN RICE, acitizen of the United States, residing at Salineville, in the county of Columbiana and State of Ohio,;r have invented certain new and useful Imrovements in Force Feed Lubricatingum s; and I do declare the following to be a ful clear, and exact description of. the invention, reference being had to the accomures of reference marked thereon, which form a part of this specification. v

This invention relates to sight-feed lubri cators of th'e'mechanical type that are de signed for forcing lubricating oil into valve chests for lubricating the steam valves and the pistons which operate in the cylinders of steam engines, or-for forcing lubricating oil to journal bearings of machinery, the invention having reference particularly to an im: proved sight-feed lubricating pump and oil crating the pump adapted to be connected to parts of machinery for convenient operation of the pump.

Objects of the invention are to rovide a relatively simple and inexpensive orce feed pump for lubricating purposes which may be depended upon to o erate reliably and economically and with .t e minimum amount of attention, a further object being to provide a lubricating pump which will be adapted to be used in various situations and in winter seasons equally as well as in summer seasons.

The invention consists in a force-feed lubricating pump comprising a reservoir and frame combined, pump barrels mounted in the reservoir, a drive shaft mounted in the reservoir, (pump plungers mounted "in the barrels an operatively connected with the drive shaft, and a conduit from one of the branch -conduit leading to the reservoir, one 1 of the barrels having a discharge pipe connected therewith, the reservoir being pro- The invention also consists in certain novel features and-in the parts and combinations and arrangements-of parts as hereinafter particularly described and defined in the ap Referring to the drawings Figure 1 isa top plan of the improved lubricating pump in which a portion of the cover of the reservoir 18 brokenaway; Fig. 2, a sectional end elevation, thenearer end of the reservoir bein broken away; Fig. 3, a longitudinal vertica sectional view; Fig. 4, a horizontal sectional view approximately on the line A A in-Fig. 2; Fig. 5, a fragmentary vertical. sectional view through the pump barrels; Fig. 6, a fragmentary sectional view showing the drive shaft and devices for operating the ump plungers Fig. 7, a vertical sectional VleW of arts of the apparatus on the-line BB in Fig. 3; Fi 8, an end view of the drive shaft and side e evations of the devices connected therewith for operating the pump plungers; I

Fig. 9, a fragmentary sectional view showing ortions of the circulating conduit and reguating valves thereof; Fig. 10, a fra mentary sectional view showing one of e check valves employed in the apparatus; Fig. 11, a

fragmentary vertical sectional view showing one of the regulating valves in theconduit; Fig. 12, a top plan of thereservoir without its cover; Fig. 13, a fra mentary elevation howing the open ends of the pump barrels; Fig. 14', a perspective view of the pump plun gers and the yoke whereby they are connected together and operated; and, Fig. 15, a horizontal sectional view on the line C O in Fig. 13. a

Similar reference characters in the different figures of the drawings designate like elements or features of construction.

A practical embodiment of the improved lubricating pumpincludes a reservoir comprising a bottom 1, a semicircular end 2 oined by two straight sides, ,3 and 4, and an end 5, the bottom being preferably provided nal box 8 on the inner side thereof which is provided on the. exterior. of the reservoir with a packing box 9 on which is a packin nut 10, the opposite side 4 having a journa box 11 on the inner side thereof opposite to the journal box 8, both journal boxes beingarranged near the end 5 and somewhat above the bottom 1 of the reservoir, the latter being provided with a cover 12 which preferabl is provided with a filling funnel 13 in whic is a screen14. .In the opposite end of the reservoir a primary pump barrel 15 and a deliver pump barre 16 are mounted and prefera 1y comprise parts of a casting 17 that N has a stem 18 extending through the end 2 and prevent return of the oil. The casting 17 is provided with a lateral projection 21 in which is a port 22 extending therethrough from the barrel 15. The upper portion of the -cast-ing 17l1as a neck 23 in which is an outlet port 24 extending from the barrel 16, there being an inlet port 25 communicating with the inner end portion of the barrel 16, One pump barrel, as willbe seen, 1s arranged above the other one, but if desired they may be ar ranged otherwise. A check valve body 26 connected to the neck23 and has a check valve 27 therein, there being a discharge pipe 28 connected to the valve body 26, and the ipe may lead to any desired place at whic 11 oil is to be fed. A check valve body 29 is connected to the projection'21 and has a check valve 30 therein, a pipe or conduit 31 being connected to the valve body 29 and extending up through the cover 12 and provided with a regulating valve body 32 having a drop nozile 33 and a valve seat 34 on which the regulating valve 35 o crates, 'a sight feed glass 36 being connecte with the valve body, and a pipe-37 extends from the sight feed glass to the inlet port 25.

Another regulating valve body 38 is connected'with the pipe 31 and has a regulating valve 39 therein, the body 38 being connected by a pipe 40 which extends therefrom through thecover 12 of the reservoir, so thatoil that may be delivered by the pump in excess of the demands may flow over and return to the reservoir. It should be understood however, that if desired the valve 39 may be dispensed with, orit may be kept openat all times and the regulation of the feed be accomplished by means of the valve 35, but both valves may be employed,

and the valve 35 will be ,useful' as a stop valve if renewal of the sight feed glass 36 becomes necessary during operation of, the pump.

A rotative drive shaft 41 is mounted in the journal boxes 8 and 11 and extends through the journal box 8 and packing nut 10, and

has an arm 42 sebured to it adj acently to thejournal box 11, the arm having a pawl 43 mounted thereon. A wheel 44 is mounted rotatively on the shaft 41 and has undercut or ratchet teeth 45 to be engaged by the pawl 43 for turning the wheel. An eccentric 46is mounted rotatively on the shaft 41 and is driven by the wheel 44, and preferably is formed as an integral part thereof. An arm 47'- is secured to the outer end of the shaft 41 and has a rod 48 pivoted thereto, and the rod may be connected to the eccentric rod of an engine or it may be actuated in any other suitable manner A yoke comprises a main bar 49 to be engaged byone side of the eccentric 46 and a crook 50 extending over and down against the opposite side of the eccentric, the bar 49 connecting a plunger 51 which 0 crates in the barrel 15 and a plunger 52 whic operates in the barrel 16, the plungers being fitted closely in the barrels and preferably ground therein, so as to make tight joints without requiring packing boxes, and the plungers working in the barrels guide the yoke while it is operated by the eccentric.

A heating coil comprises two branches 53 and 54 joined by a semicircular part 55, thelatter extending under the casting 17 near the inlet valve 20, the branches 53 and 54 extending through the end 5 and secured thereto by nuts 56 and 57, and the coil may be suitably connected to a steam boiler from which steam may be supplied for heating the oil in the reservoir. Y

- It should be understood that various kinds of valves may be employed and arranged in any suitable manner for governing the passage of oil from the pump barrel 15 to the pump barrel 16, and the sur lus, if any, from the pump barrel 15 throng '1 the pipe 40 to of the valves being dependent upon the conditions of services, as for-instance, in some spring-pressed to its seat so that the plunger 52 may force oil through the port 24 under predetermined pressure yet may be forced from its seat by a greater pressure exerted by the plunger 51, so that the excess oil may pass over through the pipe 40 to thereservoir, or obviously a chec valve may be em ployed at any suitable place between the pump barrel 16 and the valve 35 if conditions make it desirable, within the scope of the invention.

poured into the reservoir so that the pump coil. Reciprocating motion will be imparted to the connecting rod 48 in any suitable manner, so that rocking motion will be imparted to the arm 47 which in its movement in one direction will carry the pawl 43 idly over the teeth 45 of the wheel 44, permitting the pump plungers to remain at rest, and in the opposite direction of movement of the arm teeth and cause the eccentric 46 to rotate a short distance and thereby move both of the pump plungers, which on their outward movement will draw oil into the pump barrels, the barrel 15 receiving oil from the reservoir and the barrel 16 receiving oil from the conduit or pipe 37.

ment or instroke of the plungers the oil will the reservoir, the character and arrangement cases-it is obvious Jllfit the valve 39 may be In practical use, the lubricating oil is to be machinery will usually be immersed in the v 47 the pawl 43 will engage one of the ratchet On the reverse moveinstroke of the pump plungers under some conditions while the plunger 52 is moved in, a ortion ofthe distance, some of the oil would e forced from the 'pum barrel 16 out of the port 25 if not prevente by the pressure ex-x erted by the pump plunger 51 moving in ward at the same time until the plunger 52 closes the port 25, after whichthe plunger 52 will forcethe oil that has been compressed in the pump barrel 16-out through the port 24. "Other results of operation will be clearly understood from the foregoing description of 20 the construction of the a paratus.

Having thus describe the invention, what 18 claimed as new is 1. In a lubricating pump, the combination of a reservoir having two journal-boxes on theinte'rior of two sides thereof, a drive shaft rotativein the journal-boxes and extending through one of them, a packing box and nut for' the shaft at the outer sideoi the reser-' voir, an operating arm secured to the shaft adjacent to the packing box, an arm secured to the shaft adjacent to one of the journal-.

boxes, a pawl mounted on the arm, a ratchet wheel rotative on the shaft between the other journal-box and the armand en aged by the pawl, an eccentric rotative on tl connected to the ratchet wheel, a pump barrel in the reservoir, a plunger in the barrel, and a yoke on'the plunger and engaging the eccentric.

2. In a lubricating pump, the combination of a reservoir, a journal-box in the reservoir,

she-ft journaled in the journal-box, an cecentric on the shaft to be moved thereby, a cover on the reservoir, a primary pump barrel anda delivery pump barrel fixedly supported in the reservoir, .the primary pump barrel having an inlet valve, a conduit extending from the primary pump barrel to the delivery pump barrel and having a branch conduit connected thereto thatextends through-the cover, a delivery pipe connected with the delivery pump barrel, two plungers, one plunger being in one barrel and the other plunger in the other barrel, and'a yoke con- .55 nected rigidly to the two plungers and engaging the eccentric.

3. In a lubricating pump, the combination of a reservoir, a ournal-box 1n the reservoir,

a shaft journaled in the journal-box, an.ec-

centric on the shaft to 'be moved thereby, a

cover on-the reservoir, a primary pump barie shaft and rel and a delivery pump barrel fixedly suported in the reservoir, the primary oump barrel having an inlet valve and the delivery pump barrel having an outlet valve, a conduit extending from the primary pump barrel to the delivery pump barrel, a part of the conduitbeing a sight-feed glass, a pi e connected to the conduit and extending t rough the cover, a valve connected with the conduit between the sight-feed glass and the connection of the pipewith the conduit, a valve for closing the pipe, two plungers, one plunger being in onearrel and the other plunger in the-other'barrel, and a yoke connected rigidly to the two plungers and engaging the'eccent'ric.

4. In a lubricating pump, the combination of a reservoir having two j ournal-boxcs on the interior of two sides thereof, a drive shaft '80 rotative in the journal boxes, an eccentric'on the shait'to be rotated thereby, two pump barrels of identical shapejand size 'formed integrally and mounted on the interior of an other side of the reservoir, a yoke ,connected $5 with the eccentric, two (plungers oi identical shape and size connecte rigidly to the yoke, one plunger extending into one and. the other plunger extending into the other one of the two ump barrels, the two plungers fitting close y in said barrels and supporting and guiding Sam yoke in connection with said eccentric when the yoke is moved by the e'(: centric. r f

5. An improved lubricator comprising a reservoir having two journal-boxes on. thcin. teriorof two sides thereof and having also a semicircular endjoined to the two sides, the bottom of the reservoir'having a threaded opening therein, acover on the reservoir having an opening therein, a screen in the opening of the cover, a drive shaft rotativc in the j ournal-boxes, an eccentric on the shaft to be rotated thereby, two pump barrels formed integrally and attached to said sei'nicircular end of the reservoir, two p'lungere, one in each barrel, a yoke connected rigidly to the two plungers and engaging the eccentric, and a pipe coil comprising two branches are connected to'the end opposite the scmicircu- 11 lar end of the reservoir and extend under the journal b'oxes near to said bottom and past said opening therein, the branches having a semicircular part connected therewith that extends along said semicircular end adj ac'ently't'o said pump barrels.

In testimony whereof, I aiilx my signature in presence of two witnesses.

' JOHN RICE.

Witnesses:

WM. V. BLAZER, S. E. MCCORMIOK. 

